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slava [35]
3 years ago
14

Loral received all her grades for the semester (in parentheses) along with the weight for each grade, shown below. what is her f

inal grade? weight 45% = 3 tests (80%, 75%, 92%) 25% = final (88%) 15% = paper (91%) 15% = 2 oral quizzes each worth 25 points (22, 19)
Mathematics
1 answer:
Ivan3 years ago
7 0
For 45%:
 
(80 + 75 + 92) / 3 = 82.33%
 (0.8233) * (0.45) = 0.370485
 For 25%:
 
(0.88) * (0.25) = 0.22
 For 15%:
 
(0.91) * (0.15) = 0.1365
 For 15%:
 
((22/25) + (19/25)) / (2) = 0.82
 (0.82) * (0.15) = 0.123
 Adding we have:
 (0.370485) + (0.22) + (0.1365) + (0.123) = 0.849985
 The final note is:
 
0.849985 * 100 = 84.9985%
 Answer:
 
her final grade is:
 
84.9985%
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I hope the choices for the numerators of the solutions are given.

I am showing the complete work to find the solutions of this equation , it will help you to find an answer of your question based on this solution.

The standard form of a quadratic equation is :

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3 years ago
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-Dominant- [34]

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since angle B and angle C contains the same arc AD. set the angles equal

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An artist is creating a large butterfly sculpture outside a museum. There is a circular dot on each wing made out of a metal rin
IgorLugansk [536]
\bf \textit{"The distance around each dot is 24}\pi \textit{ inches."}\\\\
\textit{circumference of a circle}\\\\
C=2\pi r\quad 
\begin{cases}
r=radius\\
-----\\
C=24\pi 
\end{cases}\implies 24\pi =2\pi r\implies \cfrac{24\pi }{2\pi }=r
\\\\\\
\boxed{12=r}\\\\
-------------------------------\\\\
\textit{area of a circle}\\\\
A=\pi r^2\quad 
\begin{cases}
r=radius\\
-----\\
r=12
\end{cases}\implies A=\pi 12^2\implies A=144\pi
6 0
3 years ago
Read 2 more answers
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